#include <stdio.h>
	 
	struct Books
	{
		   char  title[50];
	      char  author[50];
	         char  subject[100];
		    int   book_id;
		    } book = {"C 语言", "LEO", "编程语言", 123456};
		     
		    int main()
		    {
			        printf("title : %s\nauthor: %s\nsubject: %s\nbook_id: %d\n", book.title, book.author, book.subject, book.book_id);
			}
